Atomizing nozzle



Jan. 13, |925,

W. O. REW,

ATouIzING NozzLE med May 17. 1918 2 Sheets-Sheet l W. O. REW

ATOMIZIHG NOZZLE Filed May 17, 191e 2 Sheets-Sheet 2 i nmuoz m WWPatented dan. 13, 1925.

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WILLIM o. nliwfor" sunnita,"CALIFORNIA assiettes. *ro GOLDEN s'rarn MILKPRODUCTS COMPANY, or SAN FRANCISCO, CALIFORNIA. a CORPORATION or CALI-Fortuna. f j

atroIaIzIIvG nozzLE.

Application fued May 17,-1918. *semi No; 235,130.

To all whom t 72mg/ concern.'

Be it 'known' that I, TILLIAM O. REW, a citizen of'the'Unlted States,residing at Eureka, in the county* of Humboldt and` StateV ofCalifornia, have invented certain new anduseful` Improvements inAtomizing Nozzles; and I do hereby declare the following to be l'a'fulh`clear, and exact description-of the "same, lreference being had to theaccompanying drawings rforming part of this specification.

Thisiinvention `relatesto atomizing noz zles'particularly those intendedfor use in desiccating milk products, the principalpobject being to`provi'dea nozzle more efficient thanvv those now ih use"and one whichcan be cleanedfwit-h great facility.

Inf the drawingsfe Fig. luis an elevation `of the nozzle in place in theair Vduct which is shown in section.` p

Fig. 2 is a-cross section 'on the line 2-2 of Fig. 1`

Fig. 3 is a 'vertical cross section'through the' center of the atomizingnozzle.

Fig. rIl is a vertical sectional view taken on the irregular line --Jlof Fig. 3.

Fig.` 5 is a view of the central core partly broken away to show theinterior arrangement.` i Y The atomizing nozzleincludes a stem 1connected to the main steam line 2 by a couplingf-S of the usual'llcindand joined at its other end to a head t which in turn is fastened to thecentral core 5 by a screwthreaded extension 6, the joint between thembeing provided with a metal gasket 7 preferably of lead to securelyclose the upper end of the ducts 87 equispaced about the central orifice9 of the core, which orifice communicates at its upper end with thechamber 10 which is cut in the upper end of the core 5 to providecommunication between the ducts 8 and the steam channel 11, the latterbeing flared as at 12 to direct the steam through the spaced ducts aswell as through the central orifice 9. A plural ity of radial holes 13are spaced around the cylindrical end of the central core andcommunicate with an annular air space 14 surrounding the upper end ofthe main flaring orii'ice 9, in order to provide a circulation of airabout this orifice and the ducts to cool the walls thereof. As best seenin Fig. 4, the holes 13 are arranged in threes and are spaced betweenthe vertical ducts 8, thereby carrying oli" a considerable quantitv ofheat. A ledge 15 closes the top of the chamber' 111: against the steamand is lsecurely brazed tothe central piece 16 of the core. thenecessity for this piece 1G being for convenience in forming the airchamber 14. The lower wia-ll of the central core is bell-shaped, as at`17, to provide a flaringV central orifice and the `core is provided justabove this point with threads 18 to which is attached an annularthi'mble nular wall 24 in close proximity to the lower end 25 of theannulus 19 and forming therewith a small annular air `orifice 26 for theair chamber 27 formed between the upperiwall 28 of the shell and theouter vsall of the coreY and also between the` lower tapered end 241 ofthe shelland the outer wall of the annulus 19, the two parts ,off

this airchamber 27 con'imunicating through. l

the holes 29 in the lug 21. Secured to the threaded end 311-of ahorizontalextension AI 32 ofthe shell member isxa bowl member..

33 having a tapered wall 34- narrowing towards the wall 24 of the shellto form a milk reservoir 311/ and also having a vertical skirt or sleeve35 perforated as at 36 to permit air to pass therethrough to theconcentric orifices just described, but preventing a current of air frominterfering with the operation of the nozzle, The bowl member 83 andalso the cap member 37 which secures the shell to the head are providedwith wrench holes 38 to aid in securely fastening the various parts ofthe nozzle together.

In order to space the nozzle in proper relation to the air tube 39 aspider 40 is pro; vided consisting of a collar 41 loosely sli-ding onstem 1 and having mounted thereon a plurality of spacing members 42 forholding the nozzle approximately centrally of the air pipe. The shellmember is pro-` vided as at t3 with a Aiilk channel leading to an uppermilk pipe lll integral therewith, which is threaded at its upper end toreceive a milk conduit leading from the main reservoir.

In operation, milk is led through the conduit 4-5, thence through thepipe lll to the milk chamber 534- and forced out in the form of a finespray through the nai'- i'od annular slit between the shell and the bowlmember. Steam is admitted through pipe l and at the top of the coreseparates into a plurality of streams partly passing through the Haringcentral orifice 9 and partly passing through the vertical ducts 8 whichlead at their lower ends to the annular steam channel 20, the orifice ofthis channel directing the flow of the steam almost at right anglestothe flow of the milk through 'its annular orifice. Air is admittedthrough the large holes 46 in the upper part of the shell member andpasses partly into the air chamber 14 to cool the core member and alsopasses down the air chamber 27 and out the orificel 26 which is directedatan angle approximately inidway-between the angles 'of exit of thesteam and: milk. In this way the milk is discharged into the desiccatingchamber in an extremely finely divided state enabling the steam andheated air to readily'extract all of the' moisture present therein,depositing the Asolid materia-l of the milk at the bottom vof thedesiccating chamber in a lfine white powder.

lVhat is' claimed is:

l. ln an atomizing nozzle, a central bore having a centralV orifice anda plurality of auxiliary orifices surrounding the central orifice, anair chambei1 closed at its forward end and located between the centralorifice passageway, and a cylindrical sleeve on said member to cooperatewith said bell shaped1 extensionto form a chamber into which saiddischarge passages lead.

y'l. A centrallyy perforated nozzlemember havingV a 'plurality ofdischarge passages spaced about said central perforation, a bell mouthforming an extension of the central (itl passageway, and a cylindricalsleeve adjustably mounted on said member to cooperate with said bellshaped extension to'forin a chamber into which said discharge'pa'ssageslead and to provide an annular orifice, from said chamber.

A. centrally perforated nozzle member havinga' plurality of dischargepassages spaced about said central perforation, an air chamber closed atits forward end and located between Atliecentral perforation'fand thedischarge passages and having an outlet between two adjacent dischargepassages. j G. A nozzle member having a central oritice, a plurality ofparallel Vdischarge passage-- ways surrounding the central orifice andau annular airchambei located between said orifice and passageways, aflaring extension forming a continuation of said orifice, an annularsleeve cooperating with said eXtension to define a chamber the entranceto which is through saidv discharge passageways and the exit to whichlies between said sleeve andsaid extension. Y

WILLIAM O. REW.

